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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6065919
    Disgrifiad
    A photocopy of diagrams showing a section, a plan and an elevation of Frongoch Lead Mine engine house.
    Enw Casgliad
    NMR Site Files
    Cyfrwng
    Graphic.
    Cychwynnwr
    Mr Douglas B. Hague, RCAHMW
    Dyddiad
    1977-08-30